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Water temperature in McLain State Park (MI) in August

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Is it warm enough to swim in McLain State Park in August? Average water temperature in McLain State Park in August is 64.4°F and therefore is not suitable for comfortable swimming. The warmest water in McLain State Park in August is 70.9°F, and the coldest is 48.9°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in McLain State Park

Changes water temperature in McLain State Park in August 2025, 2024

To get an accurate forecast for the water temperature in McLain State Park for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in McLain State Park, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of August.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
August 167.3°F70°F50.5°F70.9°F
August 266.2°F70.3°F52.5°F70.3°F
August 364.9°F70.3°F52.5°F70.3°F
August 465.5°F70.2°F50.4°F70.2°F
August 565.5°F70.3°F51.1°F70.3°F
August 666.2°F70.5°F52°F70.5°F
August 766.6°F69.4°F55.9°F69.4°F
August 867.8°F69.1°F54.7°F70.5°F
August 967.8°F68°F55.4°F70.3°F
August 1068.5°F67.5°F55.2°F70°F
August 1168.7°F67.3°F53.2°F69.1°F
August 1268.5°F67.6°F54°F70.2°F
August 1369.3°F67.3°F55.8°F69.3°F
August 1469.4°F68°F58.1°F69.4°F
August 1569.3°F68°F54.5°F69.3°F
Day 2025 2024 Min Max
August 1669.3°F67.3°F55.2°F69.3°F
August 1767.6°F66°F55.4°F69.3°F
August 1867.3°F63.5°F50.4°F69.3°F
August 1967.1°F61.7°F48.9°F70.3°F
August 2066.4°F55.8°F48.9°F70.5°F
August 2164.2°F57.9°F51.4°F70.5°F
August 2264°F62.6°F53.6°F70°F
August 2363.7°F65.1°F52.2°F69.8°F
August 2464°F66°F51.3°F69.6°F
August 2563°F66°F50.7°F69.3°F
August 2660.6°F68.4°F52.3°F69.1°F
August 2761°F67.3°F55.4°F69.3°F
August 2860.1°F65.5°F57.4°F69.4°F
August 2960.8°F65.1°F56.8°F70°F
August 3061°F61.3°F55.2°F69.4°F
August 3161.3°F60.1°F52.5°F69.3°F
McLain State Park water temp chart in August

Average water temperature in McLain State Park in August over a decade

20162017201820192020
66.9°F60.8°F61.7°F67.3°F67.6°F
20212022202320242025
67.8°F58.5°F65.3°F66.2°F66.4°F

McLain State Park sea state in August

Chart comparing the height of waves in McLain State Park in August over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in McLain State Park in August

McLain State Park water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in August?

Want to know where the water temperature in August is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in August. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Isle Royale60.3°F43.3°F67.1°F
Harvey64.9°F58.3°F71.1°F
Marquette64.8°F57.9°F71.2°F
Grand Marais59.9°F44.6°F68.5°F
Apostle Islands66°F57.4°F72.1°F
Lutsen61°F43.9°F69.3°F
Rock River65.8°F58.1°F71.8°F
Au Train65.8°F57.7°F71.8°F
Madeline Island67.6°F60.4°F73.2°F
Big Bay State Park67.6°F60.4°F73.2°F

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for McLain State Park is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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